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US 4,432,952 AGranted
Process for separating germanium from an aqueous solution by means of an alphahydroxyoxime
AssigneeMetallurgie Hoboken-Overpelt
InventorsAchille De Schepper, Marc Coussement, Antoine Van Peteghem
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Abstract
A substituted 8-hydroxyquinoline is added to the alphahydroxyoxime extractant, which allows extracting germanium at lower acidity and with a better yield.
Claims7
Process for separating germanium from a germanium-containing aqueous acid solution, comprising the steps of
- (a) contacting the solution with an organic liquid containing an aliphatic alpha-hydroxyoxime and a substituted 8-hydroxyquinoline, thereby producing a germanium-loaded organic phase and an aqueous phase depleted in germanium;
- (b) separating the germanium-loaded organic phase from the aqueous phase depleted in germanium;
- (c) contacting the germanium-loaded organic phase with an aqueous basic solution, thereby producing an organic phase depleted in germanium and a germanium-loaded basic aqueous phase;
- and
- (d) separating the organic phase depleted in germanium from the germanium-loaded basic aqueous phase.
2 more elements
Dependencies are inferred from the claim text.